Jonathon, GCC does not like declaring variables in a for statement. If you want to make the variable m have the scope for only the for loop, you would need:
foo()
{
...
{
int i, m;
for (i=0, m=0; i<5; i++){...}
printf("Final value of i: %d\n",i);
}
...
}
If you don't mind the 'm' variable having the scope of its enclosing block,
then you can omit the outer braces around the for.
— David
On Nov 12, 2009, at 2:29 PM, Jonathon Kuo wrote:
> I can't chance upon the right incantation for using both an existing variable
> and an inline new one in a for loop. I've boiled this down to a trivial show
> case, same results for both gcc 4.0.1 and 4.2.1:
>
> int i;
> . . .
> for (i=0, int m=0; i<5; i++) { . . . };
> printf("Final value of i: %d\n",i);
>
> error: syntax error before ‘int’
> error: syntax error before ‘)’ token
>
> So I tried this:
>
> int i;
> . . .
> for (int m=0,i=0; i<5; i++) { . . . };
> printf("Final value of i: %d\n",i);
>
> error: redefinition of ‘i’
>
> Is there a rule that ALL initialized loop variables are either new and local
> to the loop, or that none are? Surely Im doing something wrong here!
>
smime.p7s
Description: S/MIME cryptographic signature
_______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
